... wide range of PH value, does not cause harm to equipment, a great water purifier, clears up SS, ... in drinking water, waste water, and industrial water.UsageMethods on how to use Pac is as following :1: add the solid ... the percentage of 1:3, then dilute it to whatever concentration you desire with 10-30 times the ... amount of water2, based on the turbidness of the raw water, decide the ...